/**
 *
 */
package net.hvacapp.cmvrfforandroid;

import android.app.Activity;

import net.hvacapp.cmvrfforandroid.ui.selections.model.AreaData;

import java.util.Stack;

/**
 * Activity管理类,用于应用程序管理和退出
 *
 * @author hailong.han
 * @description 2014年8月18日
 */
public class AppManager {
    private static Stack<Activity> activityStack;
    private static AppManager instance;

    private AreaData mDefaultNation;

    private AppManager() {

    }

    /**
     * 单一实例
     */
    public static AppManager getAppManager() {
        if (instance == null) {
            instance = new AppManager();
        }
        return instance;
    }

    /**
     * 添加Activity到堆栈
     */
    public void addActivity(Activity activity) {
        if (activityStack == null) {
            activityStack = new Stack<Activity>();
        }
        activityStack.add(activity);
    }

    /**
     * 获取当前Activity（堆栈中最后一个压入的）
     */
    public Activity currentActivity() {
        if (activityStack != null && !activityStack.isEmpty()) {
            Activity activity = activityStack.lastElement();
            return activity;
        }
        return null;
    }

    /**
     * 结束当前Activity（堆栈中最后一个压入的）
     */
    public void finishActivity() {
        Activity activity = activityStack.lastElement();
        finishActivity(activity);
    }

    /**
     * 结束指定的Activity
     */
    public void finishActivity(Activity activity) {
        if (activity != null) {
            activityStack.remove(activity);
            activity.finish();
            activity = null;
        }
    }

    /**
     * 结束指定类名的Activity
     */
    public void finishActivity(Class<?> cls) {
        Stack<Activity> deleteActivityStack = new Stack<Activity>();
        for (Activity activity : activityStack) {
            if (activity.getClass().equals(cls)) {
                // finishActivity(activity);
                deleteActivityStack.add(activity);
            }
        }

        activityStack.removeAll(deleteActivityStack);
        for (Activity activity : deleteActivityStack) {
            activity.finish();
            activity = null;
        }
    }

    /**
     * 结束所有Activity
     */
    public void finishAllActivity() {
        for (int i = 0, size = activityStack.size(); i < size; i++) {
            if (null != activityStack.get(i)) {
                activityStack.get(i).finish();
            }
        }
        activityStack.clear();
    }

    /**
     * 退出应用程序
     */
    public void AppExit() {
        try {
            finishAllActivity();
            android.os.Process.killProcess(android.os.Process.myPid());
            System.exit(0);
        } catch (Exception e) {
        }
    }

    public AreaData getmDefaultNation() {
        return mDefaultNation;
    }

    public void setmDefaultNation(AreaData mDefaultNation) {
        this.mDefaultNation = mDefaultNation;
    }
}
